John Carvalho is the COO of bitrefill.com, which allows users to purchase giftcards with crypto for a huge array of products and services all over the world. He is also respected for his thoughtful writing, which represents a valuable contribution to the space, and helps many people understand better what bitcoin is and how it works.Enjoy!More from John:WEBSITE: https://www.bitrefill.com/TWITTER: https://twitter.com/johnkvallisMore from Me:TWITTER: http://bit.ly/2P7PUjAFACEBOOK: http://bit.ly/30lRjUBINSTAGRAM: http://bit.ly/30r7IqYYOUTUBE: http://bit.ly/2TDeMy9MEDIUM: http://bit.ly/2Zk0Dex